Electric bell cord



(No Model.)

H. B. COX.

ELBGTRIG BELL CORD.

/N V EN TOI? www Aiorneys.

N. PETERS. Pnotlmguwer. wnhingxon. D. C4

UNITED STATES PATENT OFFICE.

HARRY B. COX, OF CINCINNATI, OHIO.

ELECTRIC BELL CORD.

SPECIFICATION forming part of Letters Patent No. 340,425, dated April 20.11886.

Application filed January 23. 1886.

i cinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Electric Bell Cords; and I do hereby declare that the following is a full, clear, and exact description of the invention, t which will enable others skilled in the art to 'l which it appertains to make and use the same, reference being had tothe accompanying d rawings, and to the letters of reference markedl thereon, which form part of t-his specification. l

My invention relates to bellcords for railwayvtrains; and it consists in the improved construction of electric bell-cords'hereinafter fully descrbed,and specifically pointed outin l the claims.

In the accompanying drawings,Figure 1 represents an interior view of a portion of a railway-car,showing the manner in which my invention is applied for use. Fig. 2 is a perspective view ot' myimproved bellcord,therubber or other dexible outer tube being removed. Fig. 3 is a perspective view, aportion of said outer tube being broken away; and Fig. l is a longitudinal central section through the device complete.

Like letters of reference mark the same parts wherever they occur in the several figures.

Referring to the drawings by letters of reference,A is the roof of an ordinary passengerear, from which usually depend brackets or hangers B, for receiving and suspending the bell-cord, which passes through openings in the ends ol' the cars and reaches from the engine tothe rear of the train. These parts are of ordinary construction, and are merely shown for the purpose of illustrating the man- 1 ner (well known) of suspending any bell-cord.

Of course any other suitable means might be used for this purpose, my invention relating to the construct-ion of a bell-cord, and not to the manner of suspending it.

My bell-cord C is constructed as follows: D marks a rubber or other flexible tubing, com- Serial No. 189.4257. (No model.)

posed of insulating material. E E are two wires contained within the said tubing and held apart at intervals by means of blocks F F F, of insulating material, which are diskshaped and of a size sufiicient to ll the outer tube when placed therein. On opposite sides these insulating disks are provided with notches to receive the wires E E. said notches being marked ff. The wires EE. separated by the insulators and resting in the notches therein, are placed within the rubber tubing, being normally kept apart therein. On -the engine is placed an electric bell anda suitable battery, to the poles of which the wires E E are attached. There being no contact between these wires normally the circuit is normally incomplete and must be completed in order to ring the bell. This can be done at any point in the length of the bell-cord between the insulators by simply squeezing the outer tubing until the wires touch each other. This completes the circuit and rings the bell.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent ot' the United States, is-

1. An electric bell cord consisting of a rubber tube, a series of insulating-disks of a diameter equal to the interior diameter of said tube, located therein at intervals, and two wires held apart and against the interior of the tube by said insulators, as set forth.

2. The combination, with the continuous rubber tube D, of the insulatingdisks F, of a diameter to fit said tube, provided with notches in their peripheries, and the two wires E E', passing through said notches and held apart by means of said insulators, as set forth.

In testimony that I claim the foregoing as my own I hereunto aiiiX my signature in presence ot' two witnesses.

HARRY B. cox.

Vitnesses:

C. B. FoasE, R. F. HEATH. 

